Hi everybody, i am new to seadoos, i have taken my rxt 2012 to greece with us, its only done 8 hrs, was fine yesterday playing with ringo on the back for about a hour, stopped at beach, anchored of shore for about 1.5 hr, went to have a blast and the engine started fine, went to pull off and very bad engine vibration like a suddering on pulling the throttle? can go 4mph and when trying to go faster its like the engine reving fine and boost comes in and all normal but with a vibration and no drive apart for the 4-5mph no matter how fast the engine, has anybody else ever had this problem or now what it is. as we on holiday i and dont want to just sit and look at it as is great fun when right. please help. is this a easy fix as i am quite able if needed.?? thanks for reading..